Question about MERC 1978 800 80hp carburetor rod.

[Jake222]

I was wondering if this rod connected to I think the gas valves of the carb is supposed to move like this and come all the way out of the socket. I notice that the hose it goes into it has electrical connections so I was wondering the function of this and if it looks okay. Posted video here on YouTube. https://youtu.be/UPh11RbzkQc
also. I broke this plastic piece when taking the carbs out to clean and I’m not sure what it is called/part number. I’m sure I’ll find it by looking it up enough. Pics attached.

 

[GA_Boater]

1) That is the choke plunger and it fits inside the choke solenoid. Normal to pull out or fall out when carbs are removed.

2) Broken coupler is P/N 53720A 2 and is NLA from Merc, but Ebay has a repop - http://www.ebay.com/itm/Mercury-537...230893?hash=item26319e8a2d:g:RUwAAOSwzYteJjsG

 

[Jake222]

Thanks, im thinking of 3d printing one as i am very good with 3d printing and could design one pretty easily.

 

[Chris1956]

Merc used electrical wire and electrical connectors to actuate their manual choke, for some reason. The choke was purely mechanical and the wire they used simply pulled it closed. I guess it was easier to use the stuff they had on hand, versus buying some thin stainless steel cable

 

[merc850]

I think that that carb syncher is made of ABS plastic but at least the material you use in 3D printing has to be fuel proof.

 

[GA_Boater]

The original also has captured stainless wear bushings. Can you print a rod around the bushings?

I would go with the NLA rod which is beefed up for 35 bucks plus shipping.

 

[Jake222]

Ended up going with the nla rod due to the resistive the of fuel.

 

[Jake222]

Made this happen with some jbwaterweld putty due to my schedule so I can test out the cleaned carbs tomorrow. Definitely gonna put the nla on when it comes in I agree it does look very solid. It states on the package that jb water weld putty is fuel resistant though. Cool stuff

 

[Jake222]

Check this out. First start in 10 years. https://youtu.be/mQcvX9LuC2M